H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 7/36 (2006.01) H04L 29/06 (2006.01) H04Q 7/38 (2006.01) H04Q 7/22 (2006.01)
Patent
CA 2304695
A mobile terminal (MT) and a method of preventing loss of information for a MT using a simple link-layer connection with new and old BSs. As the MT roams through the global Internet, the MT establishes a link-layer connection with a BS and obtains an IP address identifying this connection. When the MT establishes a new link-layer connection with a new BS and obtains a new IP address, the MT maintains the link-layer connection to the previously visited (old) BS and the old IP address for a predetermined time period. By maintaining two IP addresses and the link- layer connections to the new and old BSs at the same time, the MT can receive any IP traffic directed to the old IP address for a certain period of time and the IP traffic directed to the new IP address. The method prevents loss of information directed to the old IP address of the MT as the MT roams in the global Internet.
Kirby Eades Gale Baker
Lucent Technologies Inc.
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